Improvement in the manufacture of draw-bars for railway-cars



'3 Sheets-Sheetl. J. '1. WILSON. MANUFACTURE OF DRAW-BARS FOR RAILWAY-CARS.

No. 195,736. Patented 0ct.2,1877.

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MANUFACTURE OF DRAW-BARS FOR RAILWAY-CARS.

No. 195,736: Patented 0ct.2,1877.

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.T. T. WILSON. MANUFACTURE OF DRAW-BARS FOR RAILWAY-CARS.

No. 195,736. Patented Oct. 2,1877.

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NPETERS, PHOTO-UTHOGRAPNER, WASHINGTON. D C- UNITED STATES PATENT Darren.

JOHN T. WILSON, OF PITTSBURG, PENXSYLVAXIA, ASSIGNOR TO \VILSOX, WVALKER 8s 00., OF SAME PLACE.

IMPROVEMENT INTHE MANUFACTURE OF DRAW-BARS FOR RAILWAY-CARS.

Specification forming part of Letters Patent No. 195,736, dated October 2, 1877; application filed May 21, 1877..

To all whom it may concern:

Be it known that I, J oHN T. WILSON, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful improvement in the Construction of Draw Pvars or (fouplings for Railway-Cars; and I do hereby declare that the following is a full and exact description thereof reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention relates to the construction of draw-bars or couplings for railway-cars; and consists in the method hereinafter described, whereby the coupling is made in one piece by tbrming and bending several parts of it, and uniting them together through the medium of a series of forging, bending, and welding dies.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

In the accompanying drawings, which form part of my specification, Figures 1 and 2 represent face views of the first set of dies. Figs. 3 and 4 are end views of the same.

In the drawings, A represents the upper die, and B the lower die, with forging-faces ef, the latter being furnished with an opening, 0, and groove 1), A being the moving die and B the stationary die, which dies may be arrangedin any suitable tbrgin-g-machine. \f; The iron for forming a portion of the front part of the draw-bar or coupling is cut in the form represented in Fig. 5, the plate or bar from which it is out being made from a pile, so arranged that the fiber will run in the direction indicated by the arrows in Fig. 5. The piece shown in Fig. 5 is then heated to the proper degree, and the part j is placed in the opening 0 of the lower die B. The upper die A, strikin down on the part marked h h, forces it out right and left. The heated iron is then removed from the opening 0 and placed upon the face f of the die B, and the face 6 of the die A brought down upon it for thepurpose of truing it up. It is again placed in the opening 0 and subjected to several strokes from the die A, which will bring it partially into the form represented in Fig. 6.

The parts z i are further drawn out by placing them alternately upon the part k of the die B, and subjecting them to the action of the part I of the die A. The part j of the picce represented in Fig. 6 is placed upon the face f of the die B, with the parts i i placed in the groove 1) of the die B, in which case the part j will point toward the opening in the die 13. The heated piece is then subjcctcd to a scrics of strokes from the die A. iy thus subjecting the heated piece represented in Fig. 5 to the manipulations and actions of the dics, substantially as before described, the piece represented in Fig. (i will be formed.

Fig. 7 represents a top view of the die used for bending the piece represented in Fig. (i. Fig. 8 is a front elevation of the same. Fig. 9 is a front view of the same, with the piece rep resented in Fig. 6 secured in position for bending it into the form represented in Fig. 10.

The dotted lines .1- in Fig. 1) represent the parts i 1 of the piece shown in Fig. 6 bent around the form 1' of the bendingdic shown in Figs. 7, 8. and 9, which bending-dies are furnished with two vertical standards. in 111, having slots for a key, 0, used for the purpose of holding the plate 21 down on the piece (shown in Fig. (i) placed on said bending-die while the parts i i are being bent into the form shown in Fig. 10. The parts i i are bent into the form shown in Fig. 10 by means of the hannnerin g or sledging process, but a connteedie may be. employed for that purpose.

The position of the piece shown in Fig. 6 in the bendingdie, prior to the bending of the parts i 2' over the part 1 of said die, is clearly shown in Figs. 7 and 8. Two pieces of the form shown in Fig. 10 are made by the means hereinbetbre described.

Fig. 11 is a side view of a bending-die for bending the piece represented in Figs. 15 and 16 into the form shown in Fig. 17. Fig. 1:3 is a front view of said bending-die. Fi 12) is an end view of the same.

The said bending-die has two projecting arms, s s. which are provided with slots for the key t, which holds the plate c down on the piece A, as shown in Figs. ll and 12. The plate 0 is provided with a projecting pin, 2, which enters a recess, 3, in the piece A, by which means, in connection with the key 1, the piece A is held in a fixed position in the bend ing-die while it is being bent into the form I shown ill Fig. 17, and is indicated by the (loti ted lines in Fig. 11. The piece A is formed l by means of a pair of rolls, the form and coni struetion ot'whieh will be readily understood 1 by the skillful roller and roll turner. 1 After the pieee A is bent into the form i shown in Fig. 17, the limbs 55 (shown in Figs. a

15 and 16) are bent into the form shown in Fig. 17, by means of the hammering or sledging proeess, but a counter-die may be employed for that purpose.

The end 4 of one of the limbs 5 is heated to the degree for welding, and the end of the pieeej ot' the pieee represented in Fig. 10 is also heated to the welding degree, and is i then welded to the limb 5, and in like manner is another pieee. sueh as is shown in Fig. 10, welded to the other limb 5 of the pieee shown i in Fig. 1T,whieh will form the drawbaror eoupling shown in Fig. 21, exeepting that the fareplate or buffer-head B will be in two parts, separated at line y, whieh are subsequently heated and welded together while being held in the weltlingdie. (Shown in Figs. 18,19, and :30.)

Fig. 18 represents a top view or plan of the welding-die. Fig. 19 isat'ront elevation Ot'the same. Fig. 20 is a side elevation of the same, representing the draw-bar held in position for j welding together the thee-plate B. The welding-die has two slotted arms, 6, and keys 7 and 8, for holding the draw-bar Or coupling in a fixed position On the welding-die while the fave-plate is being welded together. The position of the keys 7 and 8 with relation to the die and drawbar is elearly shown in Figs. 19 and 20.

By eonstrueting the draw-bar or coupling shown in Fig. 21 in the manner andby means of the dies hereinbet'ore described, it ran be made of m'ought-iron or forging-steel (sen1i-steel) with great t'aeility and saving of labor.

Having thus deseribed my improvement, what I elaim as of my invention is I. As an improvement in the art of making draw-bars for railwav-ears, sueh as shown in Fig. 21, forging and bending the blanks shown in Figs. 5 and 15 into the forms shown in Figs. 10 and 17, respeetivel v, welding one of the blanks shown in Fig. 10 to eaeh arm of the blank shown in Fig. 17, and, finally, elosing the face-pl ate by welding, all substantially as hereinbefore deseribed.

L. A series of dies, substantially as shown and described, for making draw-bars for railway-ears, viz., the dies A and B, and the dies shown in Figs. 7, l1, and 18 of the drawings.

JOHN T. \VILSON.

\Vitnesses:

J/unas J. JOHNSTON, A. C. JOHNSTON. 

